Games like HELLAXY!!!
Games like HELLAXY!!! include BALL x PIT, Vampire Survivors, Slime 3K: Rise Against Despot, Death Must Die, and Halls of Torment. We matched them by the tags players give HELLAXY!!! on Steam (Bullet Hell, Shoot 'Em Up, Hack and Slash, Bullet Time, and Choices Matter): closest matches first, and among equally close ones the better-known games.
BALL x PIT
Shared: Bullet Hell · Shoot 'Em Up · Roguelite
Vampire Survivors
Shared: Bullet Hell · Roguelite · Pixel Graphics
Slime 3K: Rise Against Despot
Shared: Bullet Hell · Deckbuilding · Shoot 'Em Up
Death Must Die
Shared: Bullet Hell · Hack and Slash · Roguelite
Halls of Torment
Shared: Bullet Hell · Roguelite · Pixel Graphics
Enter the Gungeon
Shared: Bullet Hell · Roguelike · Pixel Graphics
Megabonk
Shared: Bullet Hell · Roguelite · Roguelike
20 Minutes Till Dawn
Shared: Bullet Hell · Shoot 'Em Up · Roguelite
Nuclear Throne
Shared: Bullet Hell · Roguelike · Pixel Graphics
Nova Drift
Shared: Bullet Hell · Shoot 'Em Up · Roguelite
Star of Providence
Shared: Bullet Hell · Shoot 'Em Up · Roguelite
Loop Hero
Shared: Deckbuilding · Roguelike · Choices Matter
Greedland
Shared: Shoot 'Em Up · Bullet Hell · Roguelite
Voidigo
Shared: Bullet Hell · Shoot 'Em Up · Roguelike
Brotato
Shared: Bullet Hell · Roguelike · Roguelite
Balatro
Shared: Deckbuilding · Roguelike · Roguelite
Hades
Shared: Hack and Slash · Roguelite · Roguelike
Turnip Boy Robs a Bank
Shared: Shoot 'Em Up · Hack and Slash · Roguelite
Army of Ruin
Shared: Bullet Hell · Hack and Slash · Roguelite
Skul: The Hero Slayer
Shared: Roguelike · Pixel Graphics · Roguelite
Rogue: Genesia
Shared: Bullet Hell · Roguelite · Choices Matter
Asgard's Fall — Viking Survivors
Shared: Bullet Hell · Roguelite · Hack and Slash
I Am Legion: Stand Survivors
Shared: Bullet Hell · Shoot 'Em Up · Roguelite
Hero Siege
Shared: Hack and Slash · Pixel Graphics · Roguelike